Ventilation module for respiratory support and ventilation equipment

Abstract

The invention relates to a ventilation module for respiratory support and ventilation equipment, the ventilation module comprises a gas input port, a mixed gas output port, a first ventilation branch, a second ventilation branch, a third ventilation branch and a fourth ventilation branch, and the gas input port and the mixed gas output port are arranged on different sides; the module device is contained in the module space between the gas input port and the mixed gas output port, the space of the ventilation module is fully utilized, the first ventilation branch, the second ventilation branch, the third ventilation branch and the fourth ventilation branch are integrated in the ventilation module, and the ventilation branches are arranged in a staggered mode, so that the ventilation efficiency is improved. Mixing of two kinds of gas and output of mixed gas with different frequencies are efficiently achieved, structural redundancy in the ventilation module is reduced, miniaturized structural layout of the ventilation module is achieved, the problem that the ventilation module cannot be integrated with an anaesthesia machine due to the large size is solved, the ventilation module can also be directly arranged in the breathing machine, and the size of the breathing machine can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of medical equipment, and specifically to a ventilation module and ventilation equipment for respiratory support. Background Art

[0002] Both ventilators and anesthesia machines are important medical equipment used in medical work. Among them, ventilators can generate gases of different frequencies and pass them into the patient's alveoli, among which normal frequency or high frequency is mainly used to achieve the patient's respiratory function in a non-spontaneous breathing state; anesthesia machines deliver anesthetics into the patient's alveoli through a mechanical circuit to form a partial pressure of anesthetic gas. After diffusing into the blood, it directly inhibits the central nervous system, thereby producing the effect of general anesthesia. In medical institutions, ventilators and anesthesia machines are two independent gas delivery devices, which are equipped in large quantities and occupy valuable medical space. The funds required to purchase and maintain the equipment are also very considerable. At the same time, in the prior art, the ventilation module in the ventilator that can achieve normal frequency and high-frequency ventilation has the problem of large size and complex structure. Summary of the invention

[0003] The present application provides a small-volume ventilation module for respiratory support, which is applied to corresponding ventilation equipment.

[0004] To achieve the above-mentioned object, in a first aspect, the present invention provides a ventilation module for respiratory support, comprising a gas input port, a mixed gas output port, a first ventilation branch, a second ventilation branch, a third ventilation branch and a fourth ventilation branch, wherein the gas input port is arranged at a position close to a first side of the ventilation module, comprising: a first gas input port for connecting to a gas source providing a first gas, and a second gas input port for connecting to a gas source providing a second gas; the mixed gas output port is arranged at a position close to a second side of the ventilation module, comprising: a first mixed gas output port for outputting a first mixed gas at a first ventilation frequency, and a second mixed gas output port for outputting a second mixed gas at a second ventilation frequency, and the second side of the ventilation module is opposite to or adjacent to the first side of the ventilation module;

[0005] The first ventilation branch is provided with a first flow sensor and a first flow control valve, the first flow sensor is used to detect the gas flow in the first ventilation branch, the first flow control valve is used to control the gas flow in the first ventilation branch, and outputs gas at a first ventilation frequency; the second ventilation branch is provided with a second flow sensor and a second flow control valve, the second flow sensor is used to detect the gas flow in the second ventilation branch, the second flow control valve is used to control the gas flow in the second ventilation branch, and outputs gas at a second ventilation frequency; the third ventilation branch is provided with a third flow sensor and a third flow control valve, the third flow sensor is used to detect the gas flow in the third ventilation branch, the third flow control valve is used to control the gas flow in the third ventilation branch, and outputs gas at the first ventilation frequency; the fourth ventilation branch is provided with a fourth flow sensor and a fourth flow control valve, the fourth flow sensor is used to detect the gas flow in the fourth ventilation branch, the fourth flow control valve is used to control the gas flow in the fourth ventilation branch, and outputs gas at a second ventilation frequency;

[0006] The inlet end of the first ventilation branch and the inlet end of the second ventilation branch are connected to the rear end pipeline of the first gas input port; the inlet end of the third ventilation branch and the inlet end of the fourth ventilation branch are connected to the rear end pipeline of the second gas input port; the outlet end of the first ventilation branch and the outlet end of the third ventilation branch are connected to the front end pipeline of the first mixed gas output port; the outlet end of the second ventilation branch and the outlet end of the fourth ventilation branch are connected to the front end pipeline of the second mixed gas output port; the inlet end of the first ventilation branch, the inlet end of the second ventilation branch, the inlet end of the third ventilation branch and the inlet end of the fourth ventilation branch are arranged in sequence on the projection surface of the device arrangement direction of the ventilation module, and at least one of the first ventilation branch, the second ventilation branch, the third ventilation branch and the fourth ventilation branch is staggered with other one or more ventilation branches or the front end pipelines of the mixed gas output port on the projection surface of the device arrangement direction of the ventilation module.

[0007] In a second aspect, the present invention further provides a ventilation device, comprising the ventilation module for respiratory support described in the first aspect. The ventilation device is an anesthesia machine or a ventilator.

[0008] In the above technical solution, at least one of the third ventilation branch and the fourth ventilation branch is staggered with the other one or more ventilation branches or the front-end pipeline of the mixed gas output port on the projection surface of the device arrangement direction of the ventilation module. This method optimizes the gas path structure of the existing high-frequency jet module, integrates the first ventilation branch, the second ventilation branch, the third ventilation branch and the fourth ventilation branch inside the ventilation module, and utilizes the staggered arrangement of the ventilation branches to efficiently achieve the mixing of the two gases and the output of mixed gases of different frequencies, reduces the structural redundancy in the ventilation module, realizes the miniaturized structural layout of the ventilation module, and solves the problem that it cannot be integrated with the anesthesia machine due to its large size. In addition, the ventilation module shown in this technical solution can also be directly set in the ventilator, which can effectively reduce the size of the ventilator.

[0009] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0011] In the drawings of the specification:

[0012] Figure 1 is a first schematic diagram of a ventilation module for respiratory support in one embodiment;

[0013] Figure 2a A first schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are adjacently arranged in one embodiment;

[0014] Figure 2b A second schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are adjacently arranged in one embodiment;

[0015] Figure 2c A third schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are arranged adjacent to each other in one embodiment;

[0016] Figure 2d A fourth schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are arranged adjacent to each other in an embodiment;

[0017] Figure 3a A first schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are arranged opposite to each other in an embodiment;

[0018] Figure 3b is a second schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are arranged opposite to each other in an embodiment;

[0019] Figure 3c A third schematic diagram of each ventilation branch when the first side and the second side of the ventilation module are arranged opposite to each other in an embodiment;

[0020] Figure 4 is a second schematic diagram of a ventilation module for respiratory support in one embodiment;

[0021] Figure 5a An exploded view of a ventilation module for respiratory support in one embodiment;

[0022] Figure 5b An exploded view of a first manifold of a ventilation module in an embodiment;

[0023] Figure 5c A cross-sectional schematic diagram of a first busbar of a ventilation module in an embodiment;

[0024] Figure 5d An exploded view of a second manifold of a ventilation module in one embodiment;

[0025] Figure 6 A schematic diagram of a first busbar and a second busbar of a ventilation module in an embodiment;

[0026] Figure 7 is a third schematic diagram of a ventilation module for respiratory support in one embodiment;

[0027] Figure 8 It is a schematic diagram of a first sheet metal, a second sheet metal and a control circuit board in an embodiment.

[0028] The reference numerals in the above drawings are described as follows:

[0029] 1. Ventilation module;

[0030] 101. A first gas input port;

[0031] 102. A second gas input port;

[0032] 103. First mixed gas output port;

[0033] 104. Second mixed gas output port;

[0034] 105. A first pressure regulating valve;

[0035] 106. second pressure regulating valve;

[0036] 107. First safety valve;

[0037] 108. Second safety valve;

[0038] 109. a first exhaust gas outlet; 110. a first sheet metal;

[0039] 111, second sheet metal;

[0040] 112. Isolation layer;

[0041] 2. The first ventilation branch;

[0042] 201, first flow sensor; 202, first flow control valve; 3, second ventilation branch;

[0043] 301, second flow sensor; 302, second flow control valve; 4, third ventilation branch; 401, third flow sensor; 402, third flow control valve; 5, fourth ventilation branch;

[0044] 501, fourth flow sensor; 502, fourth flow control valve; 6, first manifold;

[0045] 601, first confluence inlet; 602, second confluence inlet; 603, first confluence outlet; 604, second confluence outlet; 605, third confluence outlet; 606, fourth confluence outlet; 607, first three-way structure; 608, second three-way structure; 609, first notch; 610, second notch;

[0046] 611, seals;

[0047] 7. Second busbar;

[0048] 701, the third confluence inlet; 702, the fourth confluence inlet; 703, the fifth confluence inlet; 704, the sixth confluence inlet; 705, the seventh confluence inlet; 706, the eighth confluence inlet;

[0049] 707, the ninth confluence entrance;

[0050] 708, the tenth confluence entrance;

[0051] 709, the fifth confluence outlet;

[0052] 710, sixth confluence outlet;

[0053] 711, the seventh confluence exit;

[0054] 712, the eighth confluence exit;

[0055] 713, the ninth confluence exit;

[0056] 714, the tenth confluence outlet;

[0057] 715, eleventh confluence exit;

[0058] 716, the twelfth confluence outlet;

[0059] 717, the third gap;

[0060] 718, the fourth gap;

[0061] 719, the third three-way structure;

[0062] 720, fourth three-way structure;

[0063] 8. Purge module;

[0064] 9. Control circuit board;

[0065] e. first side;

[0066] f, second side;

[0067] g, third side;

[0068] h. Fourth side. DETAILED DESCRIPTION

[0069] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0070] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0071] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0072] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0073] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0074] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0075] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0076] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0077] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0078] Each embodiment of the present invention provides a ventilation module 1 for respiratory support, which has the characteristics of small size and independent functions, and can be integrated with an anesthesia machine or a ventilator to realize the gas delivery function of the anesthesia machine or the ventilator.

[0079] See also Figures 1 to 4 The ventilation module 1 for respiratory support shown in this embodiment includes a gas input port, a mixed gas output port, a first ventilation branch 2, a second ventilation branch 3, a third ventilation branch 4 and a fourth ventilation branch 5; the gas input port is arranged at a position close to the first side e of the ventilation module 1, including: a first gas input port 101, used to connect to a gas source providing a first gas, and a second gas input port 102, used to connect to a gas source providing a second gas; the mixed gas output port is arranged at a position close to the second side f of the ventilation module 1, including: a first mixed gas output port 103, used to output a first mixed gas at a first ventilation frequency, and a second mixed gas output port 104, used to output a second mixed gas at a second ventilation frequency. The second side f of the ventilation module 1 is opposite to or adjacent to the first side e of the ventilation module 1.

[0080] The first ventilation branch 2 is provided with a first flow sensor 201 and a first flow control valve 202, the first flow sensor 201 is used to detect the gas flow in the first ventilation branch 2, the first flow control valve 202 is used to control the gas flow in the first ventilation branch 2, and output the gas at a first ventilation frequency; the second ventilation branch 3 is provided with a second flow sensor 301 and a second flow control valve 302, the second flow sensor 301 is used to detect the gas flow in the second ventilation branch 3, the second flow control valve 302 is used to control the gas flow in the second ventilation branch 3, and output the gas at a second ventilation frequency; The third ventilation branch 4 is provided with a third flow sensor 401 and a third flow control valve 402. The third flow sensor 401 is used to detect the gas flow in the third ventilation branch 4, and the third flow control valve 402 is used to control the gas flow in the third ventilation branch 4, and output gas at a first ventilation frequency; the fourth ventilation branch 5 is provided with a fourth flow sensor 501 and a fourth flow control valve 502. The fourth flow sensor 501 is used to detect the gas flow in the fourth ventilation branch 5, and the fourth flow control valve 502 is used to control the gas flow in the fourth ventilation branch 5, and output gas at a second ventilation frequency.

[0081] The inlet end of the first ventilation branch 2 and the inlet end of the second ventilation branch 3 are connected to the rear end pipeline of the first gas input port 101; the inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 are connected to the rear end pipeline of the second gas input port 102; the outlet end of the first ventilation branch 2 and the outlet end of the third ventilation branch 4 are connected to the front end pipeline of the first mixed gas output port 103; the outlet end of the second ventilation branch 3 and the outlet end of the fourth ventilation branch 5 are connected to the front end pipeline of the second mixed gas output port 10 4; the inlet end of the first ventilation branch 2, the inlet end of the second ventilation branch 3, the inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 are arranged in sequence on the projection surface of the device arrangement direction of the ventilation module 1, and at least one of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 is staggered with the front end pipelines of other one or more ventilation branches or the mixed gas output port on the projection surface of the device arrangement direction of the ventilation module 1.

[0082] In this embodiment, the gas input port is the gas input end of the ventilation module 1. Specifically, the gas input port includes a first gas input port 101 and a second gas input port 102. The first gas input port 101 and the second gas input port 102 are arranged in parallel and are arranged at a position close to the first side e of the ventilation module 1. The first gas and the second gas are different gases. For example, the first gas can be oxygen and the second gas can be air; or the first gas can be air and the second gas can be oxygen. This embodiment does not limit this. The mixed gas output port includes a first mixed gas output port 103 and a second mixed gas output port 104. The first mixed gas output port 103 and the second mixed gas output port 104 are arranged in parallel and are arranged at a position close to the second side f of the ventilation module 1. The first mixed gas and the second mixed gas are different, which specifically means that the first mixed gas and the second mixed gas have different frequencies, different mixing ratios, and / or different gas composition, etc. This embodiment does not limit this. In this embodiment, the frequency of gas output is achieved by the operation of the flow control valve. It should be noted that, in this embodiment, the first side e and the second side f of the ventilation module 1 may be two adjacent sides. Figures 2a to 2d As shown, it can also be two side edges arranged opposite to each other, such as Figures 3a to 3c As shown, this embodiment provides a method for arranging the gas input port and the mixed gas output port on opposite sides, which can fully utilize the circumferential space of the ventilation module 1, and this arrangement method can shorten the gas transportation distance in the ventilation module 1.

[0083] Furthermore, the first ventilation branch 2 and the second ventilation branch 3 are used to convey the first gas, and the third ventilation branch 4 and the fourth ventilation branch 5 are used to convey the second gas. The first ventilation branch 2 and the third ventilation branch 4 are both connected to the first mixed gas output port 103, then the first gas in the first ventilation branch 2 and the second gas in the third ventilation branch 4 are mixed to form a first mixed gas, and the first mixed gas is output from the first mixed gas output port 103 at a first ventilation frequency, the second ventilation branch 3 and the fourth ventilation branch 5 are both connected to the second mixed gas output port 104, then the first gas in the second ventilation branch 3 and the second gas in the fourth ventilation branch 5 are mixed to form a second mixed gas, and the second mixed gas is output from the second mixed gas output port 104 at a second ventilation frequency, thereby realizing the output function of the ventilation module 1 of two mixed gases of different frequencies, specifically, the first ventilation frequency is constant frequency, and the second ventilation frequency is high frequency; or, the first ventilation frequency is high frequency, and the second ventilation frequency is constant frequency, and this embodiment does not limit this.

[0084] A first flow sensor 201 and a first flow control valve 202 are provided on the first ventilation branch 2. The first flow sensor 201 and the first flow control valve 202 can be arranged in sequence along the gas delivery direction, or the first flow sensor 201 and the first flow control valve 202 can be arranged in sequence in the opposite direction of the gas delivery direction, and this embodiment does not limit this. Similarly, a second flow sensor 301 and a second flow control valve 302 are provided on the second ventilation branch 3. The second flow sensor 301 and the second flow control valve 302 can be arranged in sequence along the gas delivery direction, or the second flow sensor 301 and the second flow control valve 302 can be arranged in sequence in the opposite direction of the gas delivery direction, and this embodiment does not limit this. A third flow sensor 401 and a third flow control valve 402 are provided on the third ventilation branch 4. The third flow sensor 401 and the third flow control valve 402 can be arranged in sequence along the gas delivery direction, or the third flow sensor 401 and the third flow control valve 402 can be arranged in sequence in the opposite direction of the gas delivery direction, and this embodiment does not limit this. A fourth flow sensor 501 and a fourth flow control valve 502 are provided on the fourth ventilation branch 5. The fourth flow sensor 501 and the fourth flow control valve 502 can be arranged in sequence along the gas delivery direction, or the fourth flow sensor 501 and the fourth flow control valve 502 can be arranged in sequence in the opposite direction of the gas delivery direction, and this embodiment does not limit this.

[0085] The inlet end of the first ventilation branch 2, the inlet end of the second ventilation branch 3, the inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 are arranged in sequence on the projection surface of the device arrangement direction of the ventilation module 1. It should be understood as follows: the device refers to the component on the ventilation module 1, and the device arrangement direction of the ventilation module 1 is also the extension direction of the arrangement surface of the main components of the ventilation module 1. If the ventilation module 1 is made into a roughly plate-like or flatter shape, then the top (or bottom) direction corresponding to the ventilation module 1, then the projection surface corresponding to the device arrangement direction is also the plane where the ventilation module 1 is viewed from above (or above) when it is placed horizontally. The subsequent statements about the projection surface of the device arrangement direction shall prevail.

[0086] The inlet end of the first ventilation branch 2, the inlet end of the second ventilation branch 3, the inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 are arranged side by side on the projection plane. Preferably, the arrangement direction of the inlet end of the first ventilation branch 2, the inlet end of the second ventilation branch 3, the inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 is consistent with the arrangement direction of the first gas input port 101 and the second gas input port 102.

[0087] At least one of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 is staggered with one or more other ventilation branches or front-end pipelines of the mixed gas output port on the projection surface of the device arrangement direction of the ventilation module 1, which specifically includes various situations.

[0088] When the first side e is arranged adjacent to the second side f, the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 can be as follows: Figure 2a to Figure 2d From the arrangement shown, it can be seen that Figure 2a The third ventilation branch 4 intersects with the second ventilation branch 3 at one point. Figure 2b The second ventilation branch 3 intersects with the first ventilation branch 2 at one point, and the fourth ventilation branch 5 intersects with the third ventilation branch 4 at one point. Figure 2c The fourth ventilation branch 5 intersects with the third ventilation branch 4 at one point. Figure 2d The second ventilation branch 3 intersects with the first ventilation branch 2 at one point, and the third ventilation branch 4 intersects with the first ventilation branch 2 at one point.

[0089] When the first side e is arranged opposite to the second side f, the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 can be as follows: Figure 3a to Figure 3c From the arrangement shown, it can be seen that Figure 3a The third ventilation branch 4 intersects with the second ventilation branch 3 at one point. Figure 3b The second ventilation branch 3 and the fourth ventilation branch 5 intersect at one point, and the third ventilation branch 4 and the fourth ventilation branch 5 intersect at one point. Figure 3c The first ventilation branch 2 intersects with the second ventilation branch 3 at one point, the first ventilation branch 2 also intersects with the fourth ventilation branch 5 at one point, and the third ventilation branch 4 intersects with the fourth ventilation branch 5 at one point.

[0090] In a preferred embodiment, the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 are Figure 3a As shown in the arrangement, this method can reduce the number of intersections between the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5, shorten the distance of the gas delivery path, reduce the structural redundancy of the ventilation module 1, and further reduce the volume of the entire ventilation module 1, so as to facilitate direct integration with the anesthesia machine or the ventilator.

[0091] This embodiment optimizes the gas path structure of the existing high-frequency injection module, and sets the gas input port and the mixed gas output port on opposite sides, so that the module components can be accommodated in the module space between the gas input port and the mixed gas output port, making full use of the space of the ventilation module 1. By utilizing the staggered setting of the ventilation branches, the mixing of the two gases and the output of mixed gases of different frequencies are efficiently achieved, the structural redundancy in the ventilation module 1 is reduced, the miniaturized structural layout of the ventilation module 1 is achieved, and the problem that the ventilation module 1 cannot be integrated with the anesthesia machine due to its large size is solved.

[0092] See also Figure 4 In some embodiments, the second side f of the ventilation module 1 is opposite to the first side e of the ventilation module 1. This method is more in line with the planning of the gas flow direction, reduces the bending path of the gas path from input to output, increases the gas circulation rate, and is more conducive to the compact arrangement of devices to reduce the volume of the ventilation module 1.

[0093] See also Figure 3a In some embodiments, the second ventilation branch 3 is staggered with the third ventilation branch 4 on the projection surface of the device arrangement direction of the ventilation module 1. In this embodiment, when the first side e is opposite to the second side f, the second ventilation branch 3 and the third ventilation branch 4 are staggered, which can minimize the number of staggered points of the first ventilation branch 2, the second ventilation branch 3 and the third ventilation branch 4, and the fourth ventilation branch 5, making the structure of the entire ventilation module 1 simpler.

[0094] See also Figure 5a to Figure 5d In some embodiments, the first flow sensor 201 and the first flow control valve 202 are sequentially arranged along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are sequentially arranged along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are sequentially arranged along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are sequentially arranged along the gas flow direction of the fourth ventilation branch 5; the first flow control valve 202 and the third flow control valve 402 are the first valve group, and the second flow sensor 301 and the second flow control valve 302 are sequentially arranged along the gas flow direction of the second ventilation branch 3. The control valve 302 and the fourth flow control valve 502 are the second valve group, the first valve group is arranged at a position close to the third side g of the ventilation module 1, and the second valve group is arranged at a position close to the fourth side h of the ventilation module 1, the third side g of the ventilation module 1 is opposite to the fourth side h of the ventilation module 1, and both are adjacent to the first side e of the ventilation module 1 and the second side f of the ventilation module 1, the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 are arranged in parallel, and are arranged in sequence from the third side g of the ventilation module 1 to the fourth side h of the ventilation module 1.

[0095] In another embodiment, the first flow control valve 202 and the first flow sensor 201 are sequentially arranged along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are sequentially arranged along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are sequentially arranged along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are sequentially arranged along the gas flow direction of the fourth ventilation branch 5; the first flow sensor 201 and the third flow sensor 401 are the first sensor group, and the second flow sensor The device 301 and the fourth flow sensor 501 are the second sensor group, the first sensor group is arranged at a position close to the third side g of the ventilation module 1, and the second sensor group is arranged at a position close to the fourth side h of the ventilation module 1, the third side g of the ventilation module 1 is opposite to the fourth side h of the ventilation module 1, and both are adjacent to the first side e of the ventilation module 1 and the second side f of the ventilation module 1, the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged in parallel, and are arranged in sequence from the third side g of the ventilation module 1 to the fourth side h of the ventilation module 1.

[0096] In the present embodiment, the ventilation module 1 has a third side g and a fourth side h that are relatively arranged, and the third side g and the fourth side h are adjacent to the first side e and the second side f. For ease of understanding, the projection surface of the ventilation module 1 in the device arrangement direction can be taken as a parallelogram projection surface, then the first side e and the second side f are two relatively parallel sides of the parallelogram, and the third side g and the fourth side h are the other two relatively parallel sides of the parallelogram.

[0097] The models of the first flow control valve 202 and the first flow sensor 201 on the first ventilation branch 2, the models of the second flow control valve 302 and the second flow sensor 301 on the second ventilation branch 3, the models of the third flow control valve 402 and the third flow sensor 401 on the third ventilation branch 4, and the models of the fourth flow control valve 502 and the fourth flow sensor 501 on the fourth ventilation branch 5 can be the same. In this embodiment, the first flow control valve 202 and the first flow sensor 201 on the first ventilation branch 2 are taken as an example for specific description:

[0098] The first flow control valve 202 is used to adjust the gas flow in the first ventilation branch 2, and the first flow sensor 201 is used to detect the gas flow in the first ventilation branch 2. The first flow control valve 202 and the first flow sensor 201 are arranged on the first ventilation branch 2, so as to monitor and adjust the gas flow in the first ventilation branch 2. The present embodiment does not restrict the arrangement sequence of the first flow control valve 202 and the first flow sensor 201 on the first ventilation branch 2. Similarly, the present embodiment does not restrict the arrangement sequence of the second flow control valve 302 and the second flow sensor 301 on the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 on the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 on the fourth ventilation branch 5.

[0099] It should be noted that when the first flow sensor 201 and the first flow control valve 202 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow control valve 501 are arranged in parallel, the first flow control valve 202 and the third flow control valve 402 are recorded as the first valve group, the second flow control valve 302 and the fourth flow control valve 502 are recorded as the second valve group, the first valve group is arranged at a position close to the third side g of the ventilation module 1, and the second valve group is arranged close to the fourth side h of the ventilation module 1, that is, the first valve group and the second valve group are arranged relative to each other.

[0100] When the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged in parallel, the first flow sensor 201 and the third flow sensor 401 are recorded as the first sensor group, the second flow sensor 301 and the fourth flow sensor 501 are recorded as the second sensor group, the first sensor group is arranged at a position close to the third side g of the ventilation module 1, and the second sensor group is arranged at a position close to the fourth side h of the ventilation module 1, that is, the first sensor group and the second sensor group are arranged relative to each other.

[0101] This method can utilize the edge space on the ventilation module 1 close to the third side g and the fourth side h to further reduce the size occupied by internal components of the ventilation module 1, making the structure of the entire ventilation module 1 more compact.

[0102] See also Figure 5a to Figure 5d , Figure 6 as well as Figure 7 In some embodiments, the ventilation module 1 further includes a first confluence plate 6, the first confluence plate 6 has a first confluence inlet 601 and a second confluence inlet 602, and a first confluence outlet 603, a second confluence outlet 604, a third confluence outlet 605 and a fourth confluence outlet 606, the first confluence plate 6 is further provided with a first three-way structure 607 and a second three-way structure 608, the first three-way structure 607 connects the first confluence inlet 601, the first confluence outlet 603 and the second confluence outlet 604, the second three-way structure 608 connects the second confluence inlet 602, the third confluence outlet 605 and the fourth confluence outlet 606;

[0103] The first confluence inlet 601 is the first gas input port 101 or is connected to the first gas input port 101, the second confluence inlet 602 is the second gas input port 102 or is connected to the second gas input port 102; the first confluence outlet 603 is connected to the inlet of the first flow sensor 201, the second confluence outlet 604 is connected to the inlet of the second flow sensor 301, the third confluence outlet 605 is connected to the inlet of the third flow sensor 401, and the fourth confluence outlet 606 is connected to the inlet of the fourth flow sensor 501; or the first confluence outlet 603 is connected to the inlet of the first flow control valve 202, the second confluence outlet 604 is connected to the inlet of the second flow control valve 302, the third confluence outlet 605 is connected to the inlet of the third flow control valve 402, and the fourth confluence outlet 606 is connected to the inlet of the fourth flow control valve 502.

[0104] In this embodiment, the first busbar 6 is a block-shaped structural component, in which a gas passage for gas to pass is processed to replace the existing gas pipe connection. For the sake of convenience, the block-shaped structural components with gas passages are collectively referred to as busbar structures, and the relevant statements below shall be based on this.

[0105] Part of the structure of the first ventilation branch 2 and the second ventilation branch 3, the third ventilation branch 4, and the fourth ventilation branch 5 are integrated in the first busbar 6. It should be noted here that the first busbar 6 can be an integrated setting, that is, a whole block structure in form, or it can be a combination of two or more independent busbars to achieve the function of the first busbar 6 required by the embodiment, and these busbars together constitute the first busbar 6 described in the embodiment. In the second busbar 7 described below, the above different implementation methods are also applicable, that is, the second busbar 7 can be an integrated setting or a combination of multiple specific busbars. Specifically in this embodiment, the first busbar 6 can be a complete busbar structure or a split busbar structure. The split busbar structure means that part of the first ventilation branch 2 and part of the second ventilation branch 3 are integrated on one busbar structure, and part of the third ventilation branch 4 and part of the fourth ventilation branch 5 are integrated on another busbar structure. The two busbar structures are relatively independent, and the subsequent split busbar structure shall be based on this. This embodiment does not limit the specific structure of the busbar of the first busbar 6.

[0106] See also Figure 5a to Figure 5d In this embodiment, the first confluence plate 6 has a first confluence inlet 601, a second confluence inlet 602, a first confluence outlet 603, a second confluence outlet 604, a third confluence outlet 605 and a fourth confluence outlet 606. The first three-way structure 607 and the second three-way structure 608 represent gas passages with three-way functions in the first confluence plate 6. The difference is that the first three-way structure 607 and the second three-way structure 608 are relatively independent and not connected to each other.

[0107] The first three-way structure 607 is used to connect the first confluence inlet 601, the first confluence outlet 603 and the second confluence outlet 604, and the second three-way structure 608 is used to connect the second confluence inlet 602, the third confluence outlet 605 and the fourth confluence outlet 606. The first confluence inlet 601 is used to introduce the first gas, and the second confluence inlet 602 is used to introduce the second gas. That is, the first gas enters the first three-way structure 607 through the first confluence inlet 601, and is divided into two, forming a part of the first ventilation branch 2, and a part of the second ventilation branch 3, wherein the first confluence outlet 603 serves as the gas output end of the first ventilation branch 2 on the first confluence plate 6, and the second confluence outlet 604 serves as the gas output end of the second ventilation branch 3 on the first confluence plate 6; the second gas enters the second three-way structure 608 through the second confluence inlet 602, and is divided into two, forming a part of the third ventilation branch 4, and a part of the fourth ventilation branch 5, wherein the third confluence outlet 605 serves as the gas output end of the third ventilation branch 4 on the first confluence plate 6, and the fourth confluence outlet 606 serves as the gas output end of the fourth ventilation branch 5 on the first confluence plate 6.

[0108] Further, when the first flow sensor 201 and the first flow control valve 202 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the inlet of the first flow sensor 201 is connected to the first confluence outlet 603, the inlet of the second flow sensor 301 is connected to the second confluence outlet 604, the inlet of the third flow sensor 401 is connected to the third confluence outlet 605, and the inlet of the fourth flow sensor 501 is connected to the fourth confluence outlet 606.

[0109] When the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the inlet of the first flow control valve 202 is connected to the first confluence outlet 603, the inlet of the second flow control valve 302 is connected to the second confluence outlet 604, the inlet of the third flow control valve 402 is connected to the third confluence outlet 605, and the inlet of the fourth flow control valve 502 is connected to the fourth confluence outlet 606.

[0110] See also Figure 5a to Figure 5d , Figure 7 In some embodiments, the ventilation module 1 also includes a first pressure regulating valve 105 and a second pressure regulating valve 106. The first pressure regulating valve 105 is used to adjust the pressure of the input gas. The first gas input port 101 is connected to the first three-way structure 607 through the first pressure regulating valve 105, and the outlet of the first pressure regulating valve 105 is connected to the first confluence inlet 601; the second pressure regulating valve 106 is used to adjust the pressure of the input gas. The second gas input port 102 is connected to the second three-way structure 608 through the second pressure regulating valve 106, and the outlet of the second pressure regulating valve 106 is connected to the second confluence inlet 602.

[0111] In this embodiment, the first gas is output through the first gas source, and the second gas is output through the second gas source. In order to adjust the input gas pressure and to facilitate subsequent flow adjustment, a first pressure regulating valve 105 can be set before the first gas is input to the first confluence inlet 601 to adjust the gas pressure of the first gas, and a second pressure regulating valve 106 can be set before the second gas is input to the second confluence inlet 602 to adjust the gas pressure of the second gas. For example, in some embodiments, if the input gas pressure is too high, the input gas pressure can be reduced by the pressure regulating valve.

[0112] In some embodiments, the first busbar 6 has a first notch 609 and a second notch 610, and the first pressure regulating valve 105 is placed in the first notch 609; the second pressure regulating valve 106 is placed in the second notch 610. In this embodiment, the busbar structure of the first busbar 6 has a first notch 609 and a second notch 610, the first pressure regulating valve 105 is placed in the first notch 609, and the second pressure regulating valve 106 is placed in the second notch 610. This method can embed the first pressure regulating valve 105 and the second pressure regulating valve 106 in the busbar structure of the first busbar 6, improve the connection stability between the first pressure regulating valve 105, the second pressure regulating valve 106 and the first busbar 6, and at the same time, it can also reduce the space occupied by the first pressure regulating valve 105 and the second pressure regulating valve 106 in the ventilation module 1.

[0113] Preferably, the shape of the first notch 609 can be adapted to the first pressure regulating valve 105, so that the outer shell of the first pressure regulating valve 105 and the side of the first manifold 6 are placed on the same reference plane, and the shape of the second notch 610 can be adapted to the second pressure regulating valve 106, so that the outer shell of the second pressure regulating valve 106 and the side of the first manifold 6 are placed on the same reference plane, such as Figure 5a to Figure 5c , Figure 7 shown.

[0114] Furthermore, in the present embodiment, the setting positions of the first notch 609 and the second notch 610 on the first busbar 6 are not limited. Taking the first busbar 6 as an integral busbar structure as an example, the first notch 609 and the second notch 610 can be directly set on the same side of the first busbar 6 to form a square wave shape, and the first notch 609 and the second notch 610 can also be respectively set at two opposite corners of the first busbar 6 to form a right-angle depression. Taking the first busbar 6 as two independent busbar structures as an example, the first notch 609 can be placed in the center of one of the busbar structures to form a U-shaped structure, or it can be placed at the corner of one of the busbar structures to form an L-shape, and the second notch 610 can be placed in the center of the other busbar structure to form a U-shaped structure, or it can be placed at the corner of the other busbar structure to form an L-shape, such as Figure 7 shown.

[0115] See also Figure 5a to Figure 5d , Figure 6 and Figure 7 In some embodiments, the second confluence plate 7 is further included, and the second confluence plate 7 has a third confluence inlet 701, a fourth confluence inlet 702, a fifth confluence inlet 703, a sixth confluence inlet 704, a seventh confluence inlet 705, an eighth confluence inlet 706, a ninth confluence inlet 707, a tenth confluence inlet 708, and a fifth confluence outlet 709, a sixth confluence outlet 710, a seventh confluence outlet 711, an eighth confluence outlet 712, a ninth confluence outlet 713, and a tenth confluence outlet 714; the fifth confluence inlet 703 and the fifth confluence outlet 704 are connected to each other. 09, the sixth confluence inlet 704 is connected to the sixth confluence outlet 710, the seventh confluence inlet 705 is connected to the seventh confluence outlet 711, and the eighth confluence inlet 706 is connected to the eighth confluence outlet 712; a third three-way structure 719 and a fourth three-way structure 720 are also provided in the second confluence plate 7, the third three-way structure 719 is connected to the ninth confluence inlet 707, the third confluence inlet 701 and the ninth confluence outlet 713, and the fourth three-way structure 720 is connected to the tenth confluence inlet 708, the fourth confluence inlet 702 and the tenth confluence outlet 714;

[0116] When the flow sensors and flow control valves are arranged in sequence along the gas delivery direction, the fifth confluence inlet 703 is connected to the outlet of the first flow sensor 201, the sixth confluence inlet 704 is connected to the outlet of the second flow sensor 301, the seventh confluence inlet 705 is connected to the outlet of the third flow sensor 401, and the eighth confluence inlet 706 is connected to the outlet of the fourth flow sensor 501; the fifth confluence outlet 709 and the ninth confluence inlet 707 are respectively connected to the inlet and outlet of the first flow control valve 202, the sixth confluence outlet 710 and the tenth confluence inlet 708 are respectively connected to the inlet and outlet of the second flow control valve 302, the seventh confluence outlet 711 and the third confluence inlet 701 are respectively connected to the inlet and outlet of the third flow control valve 402, and the eighth confluence outlet 712 and the fourth confluence inlet 702 are respectively connected to the inlet and outlet of the fourth flow control valve 502.

[0117] When the flow control valves and flow sensors are arranged in sequence along the gas delivery direction, the fifth confluence inlet 703 is connected to the outlet of the first flow control valve 202, the sixth confluence inlet 704 is connected to the outlet of the second flow control valve 302, the seventh confluence inlet 705 is connected to the outlet of the third flow control valve 402, and the eighth confluence inlet 706 is connected to the outlet of the fourth flow control valve 502; the fifth confluence outlet 709 and the ninth confluence inlet 707 are respectively connected to the inlet and outlet of the first flow sensor 201, the sixth confluence outlet 710 and the tenth confluence inlet 708 are respectively connected to the inlet and outlet of the second flow sensor 301, the seventh confluence outlet 711 and the third confluence inlet 701 are respectively connected to the inlet and outlet of the third flow sensor 401, and the eighth confluence outlet 712 and the fourth confluence inlet 702 are respectively connected to the inlet and outlet of the fourth flow sensor 501.

[0118] In this embodiment, the first ventilation branch 2 and another part of the second ventilation branch 3, the third ventilation branch 4, and the fourth ventilation branch 5 are integrated in the second busbar 7. It should be noted here that, as described above with respect to the first busbar 6, the second busbar 7 can be a complete busbar structure or a split busbar structure, and this embodiment does not limit the busbar structure of the second busbar 7.

[0119] The second confluence plate 7 has a third confluence inlet 701, a fourth confluence inlet 702, a fifth confluence inlet 703, a sixth confluence inlet 704, a seventh confluence inlet 705, an eighth confluence inlet 706, a ninth confluence inlet 707, a tenth confluence inlet 708, and a fifth confluence outlet 709, a sixth confluence outlet 710, a seventh confluence outlet 711, an eighth confluence outlet 712, a ninth confluence outlet 713, and a tenth confluence outlet 714. It should be noted that the connection relationship between the above-mentioned multiple inlets and outlets needs to be understood in conjunction with the above-mentioned four ventilation branches, and the flow sensors and flow control valves thereon.

[0120] Taking the first ventilation branch 2 as an example, there are two arrangements of the first flow control valve 202 and the first flow sensor 201 on the first ventilation branch 2. The first arrangement is as follows: the first flow sensor 201 and the first flow control valve 202 are sequentially arranged on the first ventilation branch 2 along the gas flow direction, and the first flow sensor 201 is arranged between the first convergence plate 6 and the second convergence plate 7, the first convergence outlet 603 on the first convergence plate 6 is connected to the inlet of the first flow sensor 201, the fifth convergence inlet 703 on the second convergence plate 7 is connected to the outlet of the first flow sensor 201, the fifth convergence inlet 703 is connected to the fifth convergence outlet 709, the fifth convergence outlet 709 is connected to the inlet of the first flow control valve 202, and the fifth convergence outlet 709 is connected to the inlet of the first flow control valve 202. The outlet of one flow control valve 202 is connected to the ninth confluence inlet 707; the second type: the first flow control valve 202 and the first flow sensor 201 are sequentially provided on the first ventilation branch 2 along the gas flow direction, then the first flow control valve 202 is arranged between the first confluence plate 6 and the second confluence plate 7, the first confluence outlet 603 on the first confluence plate 6 is connected to the inlet of the first flow control valve 202, the fifth confluence inlet 703 on the second confluence plate 7 is connected to the outlet of the first flow control valve 202, the fifth confluence inlet 703 is connected to the fifth confluence outlet 709, the fifth confluence outlet 709 is connected to the inlet of the first flow sensor 201, and the outlet of the first flow sensor 201 is connected to the ninth confluence inlet 707. By analogy, the second ventilation branch 3 is connected with the second flow control valve 302 and the second flow sensor 301, the third ventilation branch 4 is connected with the third flow control valve 402 and the third flow sensor 401, and the fourth ventilation branch 5 is connected with the fourth flow control valve 502 and the fourth flow sensor 501 on the first manifold 6 and the second manifold 7 in the same manner as described above:

[0121] There are two kinds of setting sequences of the second flow control valve 302 and the second flow sensor 301 on the second ventilation branch 3. The first one is: the second flow sensor 301 and the second flow control valve 302 are sequentially arranged on the second ventilation branch 3 along the gas flow direction, and the second flow sensor 301 is arranged between the first convergence plate 6 and the second convergence plate 7, the second convergence outlet 604 on the first convergence plate 6 is connected to the inlet of the second flow sensor 301, the sixth convergence inlet 704 on the second convergence plate 7 is connected to the outlet of the second flow sensor 301, the sixth convergence inlet 704 is connected to the sixth convergence outlet 710, the sixth convergence outlet 710 is connected to the inlet of the second flow control valve 302, and the second flow control valve The outlet of 302 is connected to the tenth confluence inlet 708; the second type: a second flow control valve 302 and a second flow sensor 301 are sequentially provided on the second ventilation branch 3 along the gas flow direction, then the second flow control valve 302 is arranged between the first confluence plate 6 and the second confluence plate 7, the second confluence outlet 604 on the first confluence plate 6 is connected to the inlet of the second flow control valve 302, the sixth confluence inlet 704 on the second confluence plate 7 is connected to the outlet of the second flow control valve 302, the sixth confluence inlet 704 is connected to the sixth confluence outlet 710, the sixth confluence outlet 710 is connected to the inlet of the second flow sensor 301, and the outlet of the second flow sensor 301 is connected to the tenth confluence inlet 708.

[0122] There are two kinds of setting sequences of the third flow control valve 402 and the third flow sensor 401 on the third ventilation branch 4. The first one is: the third flow sensor 401 and the third flow control valve 402 are sequentially arranged on the third ventilation branch 4 along the gas flow direction, and the third flow sensor 401 is arranged between the first convergence plate 6 and the second convergence plate 7, the first convergence outlet 603 on the first convergence plate 6 is connected to the inlet of the third flow sensor 401, the seventh convergence inlet 705 on the second convergence plate 7 is connected to the outlet of the third flow sensor 401, the seventh convergence inlet 705 is connected to the seventh convergence outlet 711, the seventh convergence outlet 711 is connected to the inlet of the third flow control valve 402, and the third flow control valve The outlet of 402 is connected to the third confluence inlet 701; the second type: a third flow control valve 402 and a third flow sensor 401 are sequentially provided on the third ventilation branch 4 along the gas flow direction, then the third flow control valve 402 is arranged between the first confluence plate 6 and the second confluence plate 7, the first confluence outlet 603 on the first confluence plate 6 is connected to the inlet of the third flow control valve 402, the seventh confluence inlet 705 on the second confluence plate 7 is connected to the outlet of the third flow control valve 402, the seventh confluence inlet 705 is connected to the seventh confluence outlet 711, the seventh confluence outlet 711 is connected to the inlet of the third flow sensor 401, and the outlet of the third flow sensor 401 is connected to the third confluence inlet 701.

[0123] There are two arrangements of the fourth flow control valve 502 and the fourth flow sensor 501 on the fourth ventilation branch 5. The first arrangement is as follows: the fourth flow sensor 501 and the fourth flow control valve 502 are sequentially arranged along the gas flow direction on the fourth ventilation branch 5, and the fourth flow sensor 501 is arranged between the first convergence plate 6 and the second convergence plate 7, the first convergence outlet 603 on the first convergence plate 6 is connected to the inlet of the fourth flow sensor 501, the eighth convergence inlet 706 on the second convergence plate 7 is connected to the outlet of the fourth flow sensor 501, the eighth convergence inlet 706 is connected to the eighth convergence outlet 712, the eighth convergence outlet 712 is connected to the inlet of the fourth flow control valve 502, and the fourth flow control valve The outlet of 502 is connected to the fourth confluence inlet 702; the second type: the fourth flow control valve 502 and the fourth flow sensor 501 are sequentially provided on the fourth ventilation branch 5 along the gas flow direction, then the fourth flow control valve 502 is arranged between the first confluence plate 6 and the second confluence plate 7, the first confluence outlet 603 on the first confluence plate 6 is connected to the inlet of the fourth flow control valve 502, the eighth confluence inlet 706 on the second confluence plate 7 is connected to the outlet of the fourth flow control valve 502, the eighth confluence inlet 706 is connected to the eighth confluence outlet 712, the eighth confluence outlet 712 is connected to the inlet of the fourth flow sensor 501, and the outlet of the fourth flow sensor 501 is connected to the fourth confluence inlet 702.

[0124] It should be noted that the second confluence plate 7 is also provided with a third three-way structure 719 and a fourth three-way structure 720. The confluence of the first ventilation branch 2 and the third ventilation branch 4 is realized by the third three-way structure 719, and the confluence of the second ventilation branch 3 and the fourth ventilation branch 5 is realized by the fourth three-way structure 720. Therefore, in combination with the flow paths of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 on the second confluence plate 7, it can be obtained that the third three-way structure 719 connects the ninth confluence inlet 707, the third confluence inlet 701 and the ninth confluence outlet 713, and the fourth three-way structure 720 connects the tenth confluence inlet 708, the fourth confluence inlet 702 and the tenth confluence outlet 714. It should be noted that the ninth confluence outlet 713 and the tenth confluence outlet 714 are also the first mixed gas output port 103 and the second mixed gas output port 104 mentioned above.

[0125] It should be noted that the second manifold 7 has a regular manifold structure. By utilizing this structural feature, when the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged in parallel, the above-mentioned control valves can be arranged in parallel on the same side of the second manifold 7, and the first valve group and the second valve group can be arranged on both sides of the second manifold 7 respectively, thereby realizing the utilization of multiple side spaces of the second manifold 7 and further reducing the volume of the entire ventilation module.

[0126] In some embodiments, the second convergence plate 7 further has: an eleventh convergence outlet 715 and a twelfth convergence outlet 716, the eleventh convergence outlet 715 is connected to the third three-way structure 719 or the rear end pipeline of the third three-way structure 719, and the twelfth convergence outlet 716 is connected to the fourth three-way structure 720 or the rear end pipeline of the fourth three-way structure 720.

[0127] For details, please refer to Figure 5a The ventilation module 1 further includes a first safety valve 107 and a second safety valve 108 . The first safety valve 107 is connected to the eleventh confluence outlet 715 ; the second safety valve 108 is connected to the twelfth confluence outlet 716 .

[0128] In this embodiment, the first safety valve 107 and the second safety valve 108 are both safety valves. Safety valves are important safety components on pressure pipelines, pressure vessels and pressure equipment. Safety valves are safety protection valves. Under normal circumstances, their opening and closing parts are in a normally closed state. When the pressure rises and exceeds the specified value, it automatically opens to prevent the pressure from exceeding the specified value by discharging the medium to the outside. The function of the safety valve is to control the pressure not to exceed the specified value, which plays an important protective role in personal safety and the normal operation of equipment.

[0129] The eleventh confluence outlet 715 is connected to the third three-way structure 719, and the third three-way structure 719 is also connected to the ninth confluence outlet 713, that is, when there is an output abnormality at the first mixed gas output port 103, the eleventh confluence outlet 715 will transport the first mixed gas in the third three-way structure 719 to the first safety valve 107; similarly, the twelfth confluence outlet 716 is connected to the fourth three-way structure 720, and the fourth three-way structure 720 is also connected to the tenth confluence outlet 714, that is, when there is an output abnormality at the second mixed gas output port 104, the twelfth confluence outlet 716 will transport the second mixed gas in the fourth three-way structure 720 to the second safety valve 108. This method can improve the safety of mixed gas transportation, avoid damage to the ventilation module 1, and protect the personal safety of the user.

[0130] In some embodiments, the second side f of the ventilation module 1 is opposite to the first side e of the ventilation module 1, the third side g of the ventilation module 1 is opposite to the fourth side h of the ventilation module 1, and both are adjacent to the first side e of the ventilation module 1 and the second side f of the ventilation module 1; the first flow control valve 202 and the third flow control valve 402 are the first valve group, and the second flow control valve 302 and the fourth flow control valve 502 are the second valve group; the second manifold 7 has a third notch 717 on the side close to the third side g of the ventilation module 1, and the first valve group is arranged in the third notch 717; the second manifold 7 has a fourth notch 718 on the side close to the fourth side h of the ventilation module 1, and the second valve group is arranged in the fourth notch 718. When the flow sensor is arranged in the downstream of the gas path, the first flow sensor 201 and the third flow sensor 401 are the first sensor group, the second flow sensor 301 and the fourth flow sensor 501 are the second sensor group, and the first sensor group and the second sensor group can be arranged in the third notch 717 and the fourth notch 718, respectively.

[0131] See also Figure 5a to Figure 5d , Figure 6 and Figure 7 In this embodiment, the second confluence plate 7 is provided with a third notch 717 close to the third side g and a fourth notch 718 close to the fourth side h, that is, the third notch 717 and the fourth notch 718 are arranged on both sides of the second confluence valve opposite to each other.

[0132] It should be noted that whether the first valve group or the first sensor group is arranged on the third notch 717 is related to the arrangement order of the first flow control valve 202 and the first flow sensor 201 on the first ventilation branch 2, and the arrangement order of the third flow control valve 402 and the third flow sensor 401 on the third ventilation branch 4: when the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction on the first ventilation branch 2, and when the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction on the third ventilation branch 4, the first flow sensor 201 and the third flow sensor 401 form the first sensor group. The sensor group is arranged in the third gap 717. Preferably, the size of the third gap 717 is matched with the size of the first sensor group, so as to reasonably utilize the space in the third gap 717; similarly, when the first ventilation branch 2 is provided with a first flow sensor 201 and a first flow control valve 202 in sequence along the gas flow direction, and when the third ventilation branch 4 is provided with a third flow sensor 401 and a third flow control valve 402 in sequence along the gas flow direction, the first flow control valve 202 and the third flow control valve 402 form a first valve group, which is arranged in the third gap 717. Preferably, the size of the third gap 717 is matched with the size of the first valve group.

[0133] By analogy, whether the second valve group or the second sensor group is arranged on the fourth notch 718 is related to the arrangement order of the second flow control valve 302 and the second flow sensor 301 on the second ventilation branch 3, and the arrangement order of the fourth flow control valve 502 and the fourth flow sensor 501 on the fourth ventilation branch 5: when the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction on the second ventilation branch 3, and when the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction on the fourth ventilation branch 5, the second flow sensor 301 and the fourth flow sensor 501 form a second sensor group. The device group is arranged in the fourth gap 718. Preferably, the size of the fourth gap 718 is matched with the size of the second sensor group, so as to reasonably utilize the space in the fourth gap 718; similarly, when the second ventilation branch 3 is provided with a second flow sensor 301 and a second flow control valve 302 in sequence along the gas flow direction, and when the fourth ventilation branch 5 is provided with a fourth flow sensor 501 and a fourth flow control valve 502 in sequence along the gas flow direction, the second flow control valve 302 and the fourth flow control valve 502 constitute a second valve group, which is arranged in the fourth gap 718. Preferably, the size of the fourth gap 718 is matched with the size of the second valve group.

[0134] The arrangement of the first valve group, the second valve group and the first sensor group and the second sensor group shown in this embodiment can reasonably utilize the structure of the second convergence plate 7, so that the connection between the entire second convergence plate 7 and the first valve group, the second valve group and the first sensor group and the second sensor group is more compact, thereby effectively reducing the volume of the ventilation module 1.

[0135] As a preferred embodiment, the third notch 717 is arranged at the intersection of the two side edges of the second busbar 7 structure close to the third side g, and the fourth notch 718 is arranged at the intersection of the two side edges of the second busbar 7 structure close to the fourth side h. The busbar structure of the entire second busbar 7 can be in a "convex" shaped structure.

[0136] See also Figure 7In some embodiments, the first confluence plate 6 has a first confluence inlet 601 and a second confluence inlet 602, as well as a first confluence outlet 603, a second confluence outlet 604, a third confluence outlet 605 and a fourth confluence outlet 606. The first confluence plate 6 is further provided with a first three-way structure 607 and a second three-way structure 608. The first three-way structure 607 connects the first confluence inlet 601, the first confluence outlet 603 and the second confluence outlet 604, and the second three-way structure 608 connects the second confluence inlet 602, the third confluence outlet 605 and the fourth confluence outlet 606. The first confluence inlet 601 is the first gas input port 101 or is connected to the first gas input port 101, and the second confluence inlet 60 2 is the second gas input port 102 or is connected to the second gas input port 102; the first confluence outlet 603 is connected to the inlet of the first flow sensor 201, the second confluence outlet 604 is connected to the inlet of the second flow sensor 301, the third confluence outlet 605 is connected to the inlet of the third flow sensor 401, and the fourth confluence outlet 606 is connected to the inlet of the fourth flow sensor 501; or the first confluence outlet 603 is connected to the inlet of the first flow control valve 202, the second confluence outlet 604 is connected to the inlet of the second flow control valve 302, the third confluence outlet 605 is connected to the inlet of the third flow control valve 402, and the fourth confluence outlet 606 is connected to the inlet of the fourth flow control valve 502;

[0137] The first collector plate 6 is disposed close to a first side e of the ventilation module 1 , and the second collector plate 7 is disposed close to a second side f of the ventilation module 1 .

[0138] In this embodiment, the first busbar 6 is arranged at a position close to the first side e of the ventilation module 1, and the second busbar 7 is arranged at a position close to the second side f of the ventilation module 1. Then, the distribution between the first busbar 6 and the second busbar 7 is more regular, which is more in line with the distribution of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 on the ventilation module 1.

[0139] Preferably, a space for placing other components may be reserved between the first collector plate 6 and the second collector plate 7, so that the structure of the entire ventilation module 1 is more compact and streamlined.

[0140] See also Figure 5a to Figure 5d , Figure 7In some embodiments, the ventilation module 1 also includes a purge module 8, which is used to ensure that the pressure monitoring line is not blocked and realize pressure monitoring on the patient side. The purge module 8 is arranged between the first convergence plate 6 and the second convergence plate 7; the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 or the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged above the purge module 8.

[0141] The purge module 8 shown in this embodiment may be placed between the first collector plate 6 and the second collector plate 7 .

[0142] Further, when the first flow sensor 201 and the first flow control valve 202 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 are arranged above the purge module 8 in the illustrated orientation.

[0143] When the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged above the purge module 8 in the illustrated orientation.

[0144] The method shown in this embodiment enables four flow sensors or four flow control valves to build an inverted "U"-shaped structure between the first convergence plate 6 and the second convergence plate 7, while leaving space between the first convergence plate 6 and the second convergence plate 7 for the purge module 8, thereby optimizing the structural layout of the entire ventilation module 1.

[0145] See also Figure 7 In some embodiments, the air path direction of the purge module 8 is consistent with the direction in which the first side e of the ventilation module 1 extends.

[0146] The air path direction of the purge module 8 shown in the present embodiment refers to the flow direction of the gas in the purge module 8, which is consistent with the extension direction of the first side e of the ventilation module 1, that is, the air inlet of the purge module 8 is at one end of the first side e, and the air outlet of the purge module 8 is at the other end of the first side e. It should be noted here that the purge module 8 is a ventilation pipeline independent of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5, and its air path direction is consistent with the extension direction of the first side e, which can maximize the reduction of the influence of the blowing module on the layout of the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 in the ventilation module 1. Specifically, when the second side f is arranged relative to the first side e, the air path arrangement of the purge module 8 shown in the present embodiment can optimize the structural layout of the ventilation module 1.

[0147] In some embodiments, the first confluence outlet 603, the second confluence outlet 604, the third confluence outlet 605 and the fourth confluence outlet 606 are arranged on the upper surface of the first confluence plate 6, and the fifth confluence inlet 703, the sixth confluence inlet 704, the seventh confluence inlet 705, and the eighth confluence inlet 706 are arranged on the upper surface of the second confluence plate 7; the inlets and outlets of the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 or the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are located on the lower surface of the device.

[0148] In this embodiment, the first confluence outlet 603, the second confluence outlet 604, the third confluence outlet 605 and the fourth confluence outlet 606 are respectively arranged on the upper surface of the first confluence plate 6, and the fifth confluence inlet 703, the sixth confluence inlet 704, the seventh confluence inlet 705 and the eighth confluence inlet 706 are arranged on the upper surface of the second confluence plate 7. Then, when the first flow sensor 201 and the first flow control valve 202 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5 , the first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 can be directly arranged above the purge module 8; when the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 are arranged above the purge module 8.

[0149] This embodiment does not need to connect various components through air pipes, so that the entire ventilation module 1 can achieve connection between various components through the ventilation pipe structure in the first convergence plate 6 and the second convergence plate 7, further reducing the configuration of redundant air pipes in the ventilation module 1 and avoiding the entanglement of the air pipes and space occupation.

[0150] See also Figure 5c In some embodiments, part or all of the confluence inlets and confluence outlets on the first confluence plate 6 or the second confluence plate 7 are connected to the component outlet or inlet by one of the following methods:

[0151] Abutting, the confluence inlet or confluence outlet abuts against the outlet or inlet of the component in an airtight manner, and a sealing member 611 is provided at the abutting position;

[0152] Plug and connect, the confluence inlet or outlet is plugged into the outlet or inlet of the component in an airtight manner;

[0153] Snap-in connection, where the confluence inlet or outlet is connected to the outlet or inlet of the component in an airtight snap-in connection; or

[0154] Threaded connection: the confluence inlet or confluence outlet is connected to the outlet or inlet of the component in an airtight threaded connection.

[0155] It should be noted that the seal 611 may be a component made of a soft sealing material with sealing properties, such as an O-ring or a rubber gasket, or may be a sealant, etc. Specifically, Figure 5c As shown, an annular groove is provided at the confluence inlet or confluence outlet, a seal 611 is embedded in the annular groove, and part of the seal 611 protrudes to the plane where the confluence inlet or confluence outlet is located. When the component abuts against the confluence inlet or confluence outlet, the seal 611 is compressed to produce elastic deformation, thereby achieving a sealing effect.

[0156] See also Figure 5a to Figure 5d In some embodiments, in order to achieve a compact structure and facilitate the installation and removal of components, the fifth confluence outlet 709, the ninth confluence inlet 707, the seventh confluence outlet 711 and the third confluence inlet 701 are arranged on the outer wall of the third notch 717; the sixth confluence outlet 710, the tenth confluence inlet 708, the eighth confluence outlet 712 and the fourth confluence inlet 702 are arranged on the outer wall of the fourth notch 718. The first confluence outlet 603, the second confluence outlet 604, the third confluence outlet 605 and the fourth confluence outlet 606 are arranged on the upper surface of the first confluence plate, and the fifth confluence inlet 703, the sixth confluence inlet 704, the seventh confluence inlet 705 and the eighth confluence inlet 706 are arranged on the upper surface of the second confluence plate 7.

[0157] Under this premise, when the first flow sensor 201 and the first flow control valve 202 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow sensor 301 and the second flow control valve 302 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow sensor 401 and the third flow control valve 402 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow sensor 501 and the fourth flow control valve 502 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first valve group composed of the first flow control valve 202 and the third flow control valve 402 can be arranged in the third notch 717, and the second valve group composed of the second flow control valve 302 and the fourth flow control valve 502 can be directly arranged in the fourth notch 718, and the first valve group and the second valve group can be directly connected to the corresponding confluence inlet and confluence outlet mentioned above. The first flow sensor 201, the second flow sensor 301, the third flow sensor 401 and the fourth flow sensor 501 can be arranged in parallel above the first convergence plate 6 and the second convergence plate 7, making full use of the upper space of the first convergence plate 6 and the second convergence plate 7. The vacated lower space allows the purge module 8 to be arranged between the first convergence plate 6 and the second convergence plate 7.

[0158] When the first flow control valve 202 and the first flow sensor 201 are arranged in sequence along the gas flow direction of the first ventilation branch 2, the second flow control valve 302 and the second flow sensor 301 are arranged in sequence along the gas flow direction of the second ventilation branch 3, the third flow control valve 402 and the third flow sensor 401 are arranged in sequence along the gas flow direction of the third ventilation branch 4, and the fourth flow control valve 502 and the fourth flow sensor 501 are arranged in sequence along the gas flow direction of the fourth ventilation branch 5, the first sensor group composed of the first flow sensor 201 and the third flow sensor 401 can be directly arranged in the third notch 717, and the second sensor group composed of the second flow sensor 301 and the fourth flow sensor 501 can be directly arranged in the fourth notch 718, and the first sensor group and the second sensor group can be directly connected to the corresponding confluence inlet and confluence outlet mentioned above. The first flow control valve 202, the second flow control valve 302, the third flow control valve 402 and the fourth flow control valve 502 can be arranged in parallel above the first manifold 6 and the second manifold 7, making full use of the upper space of the first manifold 6 and the second manifold 7. The vacated lower space allows the purge module 8 to be arranged between the first manifold 6 and the second manifold 7.

[0159] See also Figure 8 In some embodiments, it also includes a first sheet metal 110 and a control circuit board 9. The first busbar 6 and / or the second busbar 7 are fixed to the first sheet metal 110 and are arranged on the first surface of the first sheet metal 110; the control circuit board 9 is used to control the operation of the ventilation module 1 and is arranged on the second surface of the first sheet metal 110 opposite to the first busbar 6 and / or the second busbar 7.

[0160] It should be noted that the first sheet metal 110 shown in this embodiment serves as a fixing plate for the first busbar 6 and the second busbar 7 on the ventilation module 1. The first busbar 6 and the second busbar 7 are arranged on the same side, and the control circuit board 9 is arranged on the opposite side of the first busbar 6 and the second busbar 7, so as to make full use of the space on both sides of the first sheet metal 110 and improve the structural compactness of the ventilation module 1.

[0161] See also Figure 8 In some embodiments, a second sheet metal 111 is further included, and the control circuit board 9 is disposed between the first sheet metal 110 and the second sheet metal 111, and is fixed to the first sheet metal 110 or the second sheet metal 111. In this embodiment, there is a gap between the first sheet metal 110 and the second sheet metal 111, and the control circuit board 9 is placed in the gap to prevent the influence of external dust on the control circuit board 9; specifically, the control circuit board 9 can be fixed on the first sheet metal 110, or the control circuit board 9 can be fixed on the second sheet metal 111, so that the entire ventilation module 1 forms a whole.

[0162] See also Figure 8In some embodiments, an isolation layer 112 is further included. The isolation layer 112 is disposed between the first sheet metal 110 and the control circuit board 9 to block or reduce the contact between the gas above the isolation layer 112 and the control circuit board 9.

[0163] In the above embodiment, the plane extending from the first sheet metal 110 and / or the second sheet metal 111 is parallel to the arrangement surface of the main components of the ventilation module 1, that is, consistent with the arrangement direction of the components.

[0164] The isolation layer 112 shown in this embodiment is used to prevent the gas above the isolation layer 112 from contacting the control circuit board 9. Optionally, the isolation layer 112 can be a layered structure such as a foam layer, a foam layer, a sponge layer, a rubber layer, etc. that prevents the passage of gas.

[0165] In some embodiments, the first pressure regulating valve 105 is further provided with a first exhaust gas outlet 109 , and the first exhaust gas outlet 109 is used to be connected to an external pipeline for collecting exhaust gas.

[0166] In a second aspect, this embodiment also provides a ventilation device, including the above-mentioned ventilation module 1 for respiratory support.

[0167] In some embodiments, the ventilation device is an anesthesia machine or a ventilator.

[0168] In some embodiments, the ventilation device is an anesthesia machine, which has an anesthesia module for providing anesthetic breathing support. The anesthesia module includes an anesthesia gas circuit, which includes a first anesthesia gas inlet and a second anesthesia gas inlet. The first anesthesia gas inlet is used to connect to a gas source for providing a first gas; the second anesthesia gas inlet is used to connect to a gas source for providing a second gas; the first anesthesia gas inlet and the first gas input port 101 are connected to the gas source of the first gas through a first gas inlet three-way structure, and the second anesthesia gas inlet and the second gas input port 102 are connected to the gas source of the second gas through a second gas inlet three-way structure.

[0169] In this embodiment, when the ventilation module 1 for respiratory support is integrated in the anesthesia machine, the gas source pipeline of the first gas and the gas source pipeline of the second gas in the anesthesia machine can be shared. Specifically, a first air inlet three-way structure is provided at the first anesthesia air inlet, and the first gas is divided into two through the first air inlet three-way structure. A second air inlet three-way structure is provided at the second anesthesia air inlet, and the second gas is divided into two through the second air inlet three-way structure, thereby realizing the integration of the ventilation module 1 and the anesthesia machine.

[0170] In some embodiments, the ventilation device is an anesthesia machine, and the waste gas collection system of the anesthesia machine is connected to the first waste gas exhaust hole 109. This method can further utilize the waste gas collection system of the anesthesia machine to achieve the discharge of waste gas in the ventilation module 1.

[0171] In the above technical solution, the ventilation module includes a gas input port, a mixed gas output port, a first ventilation branch 2, a second ventilation branch 3, a third ventilation branch 4 and a fourth ventilation branch 5, wherein the gas input port is arranged at a position of the ventilation module 1 close to the first side e, the mixed gas output port is arranged at a position of the ventilation module 1 close to the second side f, the first side e is adjacent to or opposite to the second side f, the gas input port includes a first gas input port 101 and a second gas input port 102, the mixed gas output port includes a first mixed gas output port 103 and a second mixed gas output port 104, the inlet end of the first ventilation branch 2 and the inlet end of the second ventilation branch 3 are connected to the first gas input port 101 The inlet end of the third ventilation branch 4 and the inlet end of the fourth ventilation branch 5 are connected to the second gas input port 102, and the outlet end of the first ventilation branch 2 and the outlet end of the third ventilation branch 4 are connected to the front end pipeline of the first mixed gas output port 103, which are used to output gas at a first ventilation frequency, and the outlet end of the second ventilation branch 3 and the outlet end of the fourth ventilation branch 5 are connected to the front end pipeline of the second mixed gas output port 104, which are used to output gas at a second ventilation frequency, and at least one of the third ventilation branch 4 and the fourth ventilation branch 5 is staggered with the front end pipelines of one or more ventilation branches or mixed gas output ports on the projection surface of the device arrangement direction of the ventilation module 1. This method optimizes the air path structure of the existing high-frequency jet module, and sets the gas input port and the mixed gas output port on opposite sides, making full use of the space around the ventilation module 1, and integrating the first ventilation branch 2, the second ventilation branch 3, the third ventilation branch 4 and the fourth ventilation branch 5 inside the ventilation module 1. In addition, by utilizing the staggered setting characteristics of the third ventilation branch 4 and the fourth ventilation branch 5, the flow path distance of the gas in the ventilation module 1 is reduced, the structural redundancy in the ventilation module 1 is reduced, and a miniaturized structural layout of the ventilation module 1 is realized, solving the problem that the ventilation module 1 cannot be integrated with the anesthesia machine due to its large size. In addition, the ventilation module 1 shown in the present technical solution can also be directly integrated into a ventilator, thereby improving the versatility of the ventilation module 1.

[0172] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A ventilation module for respiratory support, characterized in that: include: The gas input port is arranged at a position close to the first side of the ventilation module, and includes: a first gas input port for connecting to a gas source providing a first gas, and a second gas input port for connecting to a gas source providing a second gas; A mixed gas output port is arranged at a position close to the second side of the ventilation module, comprising: a first mixed gas output port for outputting a first mixed gas at a first ventilation frequency, a second mixed gas output port for outputting a second mixed gas at a second ventilation frequency, and the second side of the ventilation module is opposite to or adjacent to the first side of the ventilation module; A first ventilation branch is provided with a first flow sensor and a first flow control valve, wherein the first flow sensor is used to detect the gas flow in the first ventilation branch, and the first flow control valve is used to control the gas flow in the first ventilation branch and output gas at a first ventilation frequency; The second ventilation branch is provided with a second flow sensor and a second flow control valve, wherein the second flow sensor is used to detect the gas flow in the second ventilation branch, and the second flow control valve is used to control the gas flow in the second ventilation branch and output gas at a second ventilation frequency; A third ventilation branch is provided with a third flow sensor and a third flow control valve, wherein the third flow sensor is used to detect the gas flow in the third ventilation branch, and the third flow control valve is used to control the gas flow in the third ventilation branch and output gas at the first ventilation frequency; a fourth ventilation branch, provided with a fourth flow sensor and a fourth flow control valve, wherein the fourth flow sensor is used to detect the gas flow in the fourth ventilation branch, and the fourth flow control valve is used to control the gas flow in the fourth ventilation branch and output gas at a second ventilation frequency; The inlet end of the first ventilation branch and the inlet end of the second ventilation branch are connected to the rear end pipeline of the first gas input port; The inlet end of the third ventilation branch and the inlet end of the fourth ventilation branch are connected to the rear end pipeline of the second gas input port; The outlet end of the first ventilation branch and the outlet end of the third ventilation branch are connected to the front end pipeline of the first mixed gas output port; The outlet end of the second ventilation branch and the outlet end of the fourth ventilation branch are connected to the front end pipeline of the second mixed gas output port; The inlet end of the first ventilation branch, the inlet end of the second ventilation branch, the inlet end of the third ventilation branch and the inlet end of the fourth ventilation branch are arranged sequentially on the projection surface of the device arrangement direction of the ventilation module, and at least one of the first ventilation branch, the second ventilation branch, the third ventilation branch and the fourth ventilation branch is staggered with one or more ventilation branches or the front end pipeline of the mixed gas output port on the projection surface of the device arrangement direction of the ventilation module.

2. The ventilation module for respiratory support according to claim 1, characterized in that: The second side of the ventilation module is opposite to the first side of the ventilation module.

3. The ventilation module for respiratory support according to claim 2, characterized in that: The second ventilation branch is arranged alternately with the third ventilation branch on a projection plane of the device arrangement direction of the ventilation module.

4. The ventilation module for respiratory support according to claim 2, characterized in that: The first flow sensor and the first flow control valve are sequentially arranged along the gas flow direction of the first ventilation branch, the second flow sensor and the second flow control valve are sequentially arranged along the gas flow direction of the second ventilation branch, the third flow sensor and the third flow control valve are sequentially arranged along the gas flow direction of the third ventilation branch, and the fourth flow sensor and the fourth flow control valve are sequentially arranged along the gas flow direction of the fourth ventilation branch; the first flow control valve and the third flow control valve are a first valve group, the second flow control valve and the fourth flow control valve are a second valve group, the first valve group is arranged at a position close to the third side of the ventilation module, the second valve group is arranged at a position close to the fourth side of the ventilation module, the third side of the ventilation module is opposite to the fourth side of the ventilation module, and the two are adjacent to the first side of the ventilation module and the second side of the ventilation module, the first flow sensor, the second flow sensor, the third flow sensor and the fourth flow sensor are arranged in parallel, and are arranged sequentially from the third side of the ventilation module to the fourth side of the ventilation module; or The first flow control valve and the first flow sensor are arranged in sequence along the gas flow direction of the first ventilation branch, the second flow control valve and the second flow sensor are arranged in sequence along the gas flow direction of the second ventilation branch, the third flow control valve and the third flow sensor are arranged in sequence along the gas flow direction of the third ventilation branch, and the fourth flow control valve and the fourth flow sensor are arranged in sequence along the gas flow direction of the fourth ventilation branch; the first flow sensor and the third flow sensor are a first sensor group, the second flow sensor and the fourth flow sensor are a second sensor group, the first sensor group is arranged at a position close to the third side of the ventilation module, the second sensor group is arranged at a position close to the fourth side of the ventilation module, the third side of the ventilation module is opposite to the fourth side of the ventilation module, and the two are adjacent to the first side of the ventilation module and the second side of the ventilation module, the first flow control valve, the second flow control valve, the third flow control valve and the fourth flow control valve are arranged in parallel, and are arranged in sequence from the third side of the ventilation module to the fourth side of the ventilation module.

5. The ventilation module for respiratory support according to claim 1, characterized in that: Also includes: A first busbar, wherein the first busbar has a first busbar inlet and a second busbar inlet, and a first busbar outlet, a second busbar outlet, a third busbar outlet, and a fourth busbar outlet, and the first busbar is further provided with a first three-way structure and a second three-way structure, wherein the first three-way structure connects the first busbar inlet, the first busbar outlet, and the second busbar outlet, and the second three-way structure connects the second busbar inlet, the third busbar outlet, and the fourth busbar outlet; The first confluence inlet is the first gas input port or is connected to the first gas input port, and the second confluence inlet is the second gas input port or is connected to the second gas input port; The first confluence outlet is connected to the inlet of the first flow sensor, the second confluence outlet is connected to the inlet of the second flow sensor, the third confluence outlet is connected to the inlet of the third flow sensor, and the fourth confluence outlet is connected to the inlet of the fourth flow sensor; or the first confluence outlet is connected to the inlet of the first flow control valve, the second confluence outlet is connected to the inlet of the second flow control valve, the third confluence outlet is connected to the inlet of the third flow control valve, and the fourth confluence outlet is connected to the inlet of the fourth flow control valve.

6. The ventilation module for respiratory support according to claim 5, characterized in that: The ventilation module also includes: a first pressure regulating valve, used for regulating the pressure of input gas, wherein the first gas input port is connected to the first three-way structure through the first pressure regulating valve, and the outlet of the first pressure regulating valve is connected to the first confluence inlet; The second pressure regulating valve is used to adjust the pressure of the input gas, the second gas input port is connected to the second three-way structure through the second pressure regulating valve, and the outlet of the second pressure regulating valve is connected to the second confluence inlet.

7. The ventilation module for respiratory support according to claim 6, characterized in that: The first busbar further comprises: a first notch, wherein the first pressure regulating valve is disposed in the first notch; A second gap, wherein the second pressure regulating valve is disposed in the second gap.

8. The ventilation module for respiratory support according to claim 1, characterized in that: Also includes: a second busbar, the second busbar having a third busbar inlet, a fourth busbar inlet, a fifth busbar inlet, a sixth busbar inlet, a seventh busbar inlet, an eighth busbar inlet, a ninth busbar inlet, a tenth busbar inlet, and a fifth busbar outlet, a sixth busbar outlet, a seventh busbar outlet, an eighth busbar outlet, a ninth busbar outlet, and a tenth busbar outlet; The fifth confluence inlet is connected to the fifth confluence outlet, the sixth confluence inlet is connected to the sixth confluence outlet, the seventh confluence inlet is connected to the seventh confluence outlet, and the eighth confluence inlet is connected to the eighth confluence outlet; The second busbar is further provided with a third three-way structure and a fourth three-way structure, wherein the third three-way structure is connected with the ninth busbar inlet, the third busbar inlet and the ninth busbar outlet, and the fourth three-way structure is connected with the tenth busbar inlet, the fourth busbar inlet and the tenth busbar outlet; The fifth confluence inlet is connected to the outlet of the first flow sensor, the sixth confluence inlet is connected to the outlet of the second flow sensor, the seventh confluence inlet is connected to the outlet of the third flow sensor, and the eighth confluence inlet is connected to the outlet of the fourth flow sensor; the fifth confluence outlet and the ninth confluence inlet are respectively connected to the inlet and outlet of the first flow control valve, the sixth confluence outlet and the tenth confluence inlet are respectively connected to the inlet and outlet of the second flow control valve, the seventh confluence outlet and the third confluence inlet are respectively connected to the inlet and outlet of the third flow control valve, and the eighth confluence outlet and the fourth confluence inlet are respectively connected to the inlet and outlet of the fourth flow control valve; or The fifth confluence inlet is connected to the outlet of the first flow control valve, the sixth confluence inlet is connected to the outlet of the second flow control valve, the seventh confluence inlet is connected to the outlet of the third flow control valve, and the eighth confluence inlet is connected to the outlet of the fourth flow control valve; the fifth confluence outlet and the ninth confluence inlet are respectively connected to the inlet and outlet of the first flow sensor, the sixth confluence outlet and the tenth confluence inlet are respectively connected to the inlet and outlet of the second flow sensor, the seventh confluence outlet and the third confluence inlet are respectively connected to the inlet and outlet of the third flow sensor, and the eighth confluence outlet and the fourth confluence inlet are respectively connected to the inlet and outlet of the fourth flow sensor.

9. The ventilation module for respiratory support according to claim 8, characterized in that: The second confluence plate is further provided with: an eleventh confluence outlet and a twelfth confluence outlet, the eleventh confluence outlet is communicated with the third three-way structure or the rear end pipeline of the third three-way structure, and the twelfth confluence outlet is communicated with the fourth three-way structure or the rear end pipeline of the fourth three-way structure; The ventilation module also includes: a first safety valve, wherein the first safety valve is connected to the eleventh confluence outlet; A second safety valve is connected to the twelfth confluence outlet.

10. The ventilation module for respiratory support according to claim 8, characterized in that: The second side of the ventilation module is opposite to the first side of the ventilation module, the third side of the ventilation module is opposite to the fourth side of the ventilation module, and both are adjacent to the first side of the ventilation module and the second side of the ventilation module; The first flow control valve and the third flow control valve form a first valve group, and the second flow control valve and the fourth flow control valve form a second valve group; the first flow sensor and the third flow sensor form a first sensor group, and the second flow sensor and the fourth flow sensor form a second sensor group; A side of the second manifold close to the third side of the ventilation module has a third notch, and the first valve group or the first sensor group is arranged in the third notch; A side of the second busbar close to the fourth side of the ventilation module has a fourth notch, and the second valve group or the second sensor group is arranged in the fourth notch.

11. The ventilation module for respiratory support according to claim 8, characterized in that: Also includes: A first busbar, wherein the first busbar has a first busbar inlet and a second busbar inlet, and a first busbar outlet, a second busbar outlet, a third busbar outlet, and a fourth busbar outlet, and the first busbar is further provided with a first three-way structure and a second three-way structure, wherein the first three-way structure connects the first busbar inlet, the first busbar outlet, and the second busbar outlet, and the second three-way structure connects the second busbar inlet, the third busbar outlet, and the fourth busbar outlet; The first confluence inlet is the first gas input port or is connected to the first gas input port, the second confluence inlet is the second gas input port or is connected to the second gas input port; the first confluence outlet is connected to the inlet of the first flow sensor, the second confluence outlet is connected to the inlet of the second flow sensor, the third confluence outlet is connected to the inlet of the third flow sensor, and the fourth confluence outlet is connected to the inlet of the fourth flow sensor; or the first confluence outlet is connected to the inlet of the first flow control valve, the second confluence outlet is connected to the inlet of the second flow control valve, the third confluence outlet is connected to the inlet of the third flow control valve, and the fourth confluence outlet is connected to the inlet of the fourth flow control valve; The first busbar is disposed close to a first side of the ventilation module, and the second busbar is disposed close to a second side of the ventilation module.

12. The ventilation module for respiratory support according to claim 11, characterized in that: Also includes: A purge module is arranged between the first busbar and the second busbar; the first flow sensor, the second flow sensor, the third flow sensor and the fourth flow sensor or the first flow control valve, the second flow control valve, the third flow control valve and the fourth flow control valve are arranged above the purge module.

13. The ventilation module for respiratory support according to claim 12, characterized in that: The air path direction of the purge module is consistent with the direction in which the first side of the ventilation module extends.

14. The ventilation module for respiratory support according to claim 11, characterized in that: The first confluence outlet, the second confluence outlet, the third confluence outlet and the fourth confluence outlet are arranged on the upper surface of the first confluence plate, and the fifth confluence inlet, the sixth confluence inlet, the seventh confluence inlet and the eighth confluence inlet are arranged on the upper surface of the second confluence plate; The inlets and outlets of the first flow sensor, the second flow sensor, the third flow sensor and the fourth flow sensor or the first flow control valve, the second flow control valve, the third flow control valve and the fourth flow control valve are located on the lower surface of the device.

15. The ventilation module for respiratory support according to any one of claims 5 to 14, characterized in that: Part or all of the confluence inlets and confluence outlets on the first confluence plate or the second confluence plate are connected to the component outlet or inlet in one of the following ways: Abutting, the confluence inlet or confluence outlet abuts against the outlet or inlet of the component in an airtight manner, and a sealing member is provided at the abutment position; Plug-in, the confluence inlet or outlet is plug-in-air-tightly connected with the outlet or inlet of the component; The confluence inlet or outlet is connected with the outlet or inlet of the component in an airtight manner by snap-fitting; or Threaded connection, the confluence inlet or confluence outlet is connected to the outlet or inlet of the component in an airtight threaded connection.

16. The ventilation module for respiratory support according to any one of claims 5 to 14, characterized in that: Also includes: A first sheet metal, wherein the first busbar and / or the second busbar are fixed to the first sheet metal and are arranged on a first surface of the first sheet metal; A control circuit board is used to control the operation of the ventilation module and is arranged on the second surface of the first sheet metal opposite to the first busbar and / or the second busbar.

17. The ventilation module for respiratory support according to claim 16, characterized in that: Also includes: The second sheet metal, the control circuit board is arranged between the first sheet metal and the second sheet metal, and is fixed to the first sheet metal or the second sheet metal.

18. The ventilation module for respiratory support according to claim 16, characterized in that: Also includes: The isolation layer is arranged between the first sheet metal and the control circuit board, and is used to block or reduce the contact between the gas above the isolation layer and the control circuit board.

19. The ventilation module for respiratory support according to claim 1, characterized in that: Also includes: A first three-way structure, wherein the inlet end of the first ventilation branch and the inlet end of the second ventilation branch are connected to the rear end pipeline of the first gas input port through the first three-way structure; A second three-way structure, wherein the inlet end of the third ventilation branch and the inlet end of the fourth ventilation branch are connected to the rear end pipeline of the second gas input port through the second three-way structure; A first pressure regulating valve, used for regulating the pressure of input gas, wherein the first gas input port is connected to the first three-way structure through the first pressure regulating valve; The second pressure regulating valve is used to adjust the pressure of the input gas, and the second gas input port is connected to the second three-way structure through the second pressure regulating valve.

20. The ventilation module for respiratory support according to claim 19, characterized in that: The first pressure regulating valve is also provided with a first exhaust gas exhaust hole, and the first exhaust gas exhaust hole is used to be connected to an external pipeline for collecting exhaust gas.

21. A ventilation device, characterized in that: include: A ventilation module for respiratory support as claimed in any one of claims 1 to 20.

22. The ventilation device according to claim 21, characterized in that The ventilation equipment is an anesthesia machine or a ventilator.

23. The ventilation device according to claim 22, characterized in that The ventilation device is an anesthesia machine, which has an anesthesia module for providing anesthesia breathing support, and the anesthesia module includes an anesthesia gas circuit, which includes: A first anesthesia gas inlet port, used to be connected to a gas source providing a first gas; A second anesthesia gas inlet port is used to be connected to a gas source providing a second gas; The first anesthesia air inlet and the first gas input port are connected to a gas source of a first gas via a first air inlet three-way structure, and the second anesthesia air inlet and the second gas input port are connected to a gas source of a second gas via a second air inlet three-way structure.

24. The ventilation device of claim 22, wherein: The ventilation device is an anesthesia machine, and the waste gas collection system of the anesthesia machine is connected to the first waste gas exhaust hole described in claim 20.

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